[Portland-bugs] [Bug 103125] New: xdg-desktop-menu adds entries to defaults.list

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103125

            Bug ID: 103125
           Summary: xdg-desktop-menu adds entries to defaults.list
           Product: Portland
           Version: 1.1.0
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: xdg-utils
          Assignee: portland-bugs at lists.freedesktop.org
          Reporter: mikhirev at gmail.com

The xdg-desktop-menu script, when installing a menu entry, sets the application
as default handler for MIME types that are listed in its desktop file. This
behavior was introduced in commit 1f7f2ea7 with the following message:

> Make application the default handler for a mimetype if it is the only
> handler for that mimetype so far.

In fact, this is incorrect. xdg-desktop-menu does not check if there are other
handlers or not, it only checks that there's no *default* handler already set.
Even if it performed such a check, it would be strange to set the only possible
handler as default explicitly.

I consider such a behavior is a misfeature. Is is not documented anywhere, and
it is unexpected that the tool, the only purpose of which is to add a menu
item, adds some MIME types associations. Furthermore, it is impossible to
disable this (e.g via a command line option), and, as already reported in
#71825, such an association is not removed when removing the corresponding menu
entry or even when the application itself is being removed.

Please consider reverting commit 1f7f2ea7 and disabling such a strange
behavior.

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